Devario monticola, is a species of freshwater ray-finned fish belonging to the family Danionidae. It is endemic to Sri Lanka. However, the validity of the species description was noted problematic by several other local ichthyologists.
Body with 4âÂÂ5 dark irregular vertical bars on anterior half. Danionin notch present. Lateral line complete. Dorsum light yellowish brown with a metallic sheen. Body silvery sheen laterally and ventrally. Vertical bars metallic blue with bright yellowish interspaces. Fins hyaline.
It is found from torrential waters of Agra Oya, a tributary of Mahaweli river.